Perspective

Illustration Credits and Copyrights: Howard Perlman, USGS; globe illustration by Jack Cook, Woods Hole Oceanographic Institution; © Adam Nieman; Kevin Hand, JPL / Caltech.  Data from Igor Shiklomanov’s estimate of global water distribution in the chapter “World Fresh Water Resources” in Peter H Gleick (editor)'s Water in Crisis: A Guide to the World’s Fresh Water Resources.
photo source: a concatenation of WaterlessEarth and GlobalFreshWaterVolume and EuropasOcean